Precise mass and radius measurements alone, however, are not sufficient in establishing the bulk composition, as there are large degeneracies when determining the ratio of rock, water, and hydrogen for the interior structure [1]}, [2]}. Mini-Neptunes are one of the most commonly detected outcomes of planet formation [3]}, [4]}, [5]}, [6]}, and understanding the composition of their atmospheres can help reveal the nature, origins, and evolution of these objects [7]}, [8]}, [9]}. Luckily, we find ourselves in an era in which the ongoing Transiting Exoplanet Survey Satellite [10]} mission is set to find such targets that will be suitable for transmission spectroscopy using the future James Webb Space Telescope [11]}.
TOI-1201 b adds to the growing sample of mini-Neptunes around M dwarfs that are promising targets for transmission spectroscopy.
